Each column generally represents a single variable; however, one variable may span several columns. At the most basic level, a codebook describes the layout of the data in the data file and describes what the data codes mean. Codebooks are used to document the values associated with the answer options for a given survey question. Each answer category is given a unique numeric value, and these unique numeric values are then used by ...
The fetal attitude describes the position of the parts of your baby's body. The normal fetal attitude is commonly called the fetal position. 1  The head is tucked down to the chest.  The arms and legs are drawn in towards the center of the chest.
Breech Position. Breech Position. A fetus with the buttocks, legs, or feet pointing down toward the cervix is said to be in breech position. Before birth, most breech fetuses change position so that the head points downward. But some fetuses stay in breech position late into the third trimester.